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Background

Background. Chronopolis Goals. Data Grid supporting a Long -term Preservation Service. UCSD Libraries. Data Providers (Data repositories, libraries, etc.). Data Migration to next generation technologies. Replication of data at multiple, geographically distinct sites.

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Background

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Presentation Transcript

  1. Background

  2. Chronopolis Goals Data Grid supporting a Long-term Preservation Service UCSD Libraries Data Providers(Data repositories, libraries, etc.) Data Migration to next generationtechnologies Replication of data at multiple, geographically distinct sites Trust Agreements between sites

  3. Chronopolis: Basic Facts • Based on a 3-node federated data grid at geographically separate sites • Current capacity of up to 50 TB of data per node (150 TB total) • Using Storage Resource Broker (SRB) for data management • Using BagIt and SRB protocols to transfer data • Using several monitoring tools: Auditing Control Environment (ACE), SRB Replication Monitor, SRB System Monitor • Analyzing metadata that is created by the various parts of the system • Writing best practices documents for clients and partners

  4. Chronopolis Management UCSD Libraries • Chronopolis is being developed by a national consortium led by SDSC and the UCSD Libraries. • Initial Chronopolis nodes include: • SDSC and the UCSD Libraries at UC San Diego • University of Maryland Institute for Advanced Computer Studies (UMIACS) • National Center for Atmospheric Research (NCAR) in Boulder, CO

  5. SDSC • Founded in 1985 with a $170 million grant from the National Science Foundation's Supercomputer Centers program, SDSC is an organized research unit of the University of California, San Diego • Its staff of more than 300 includes professionals in multidisciplinary science and technology including software development; data management, analysis and preservation; visualization; high-end computing; and code optimization for a variety of scientific applications • SDSC is a founding member of the the TeraGrid, a multi-year effort to build and maintain the world's most powerful and comprehensive distributed computational infrastructure for open scientific research.

  6. NCAR

  7. UMIACS • Interdisciplinary research institute with a broad range of research programs at the interface between computer science and other disciplines • Annual budget around $25M, primarily coming from NSF, DoD, NASA, NIH, and Industry • Over 65 faculty from Computer Science, Engineering, Information Sciences, Linguistics, Life Sciences, and Social Sciences.

  8. Chronopolis Lessons • Complexities of multi-organizational model • MOUs, SLAs, multiple business offices, etc • Benefit of staff – breadth anddepth as well as redundancy • Wider palette of tools and diversity of infrastructure

  9. Membership

  10. Current Chronopolis collections March 2009 • Data Providers: • Inter-university Consortium of Political and Social Research –preservation copy of all collections including 40 years of social science data and Census • California Digital Library –political and government web crawls, Web-at-risk collection • SIO Explorer – data from 50 years of research voyages • NCSU Libraries -- State and local geospatial data http://chronopolis.sdsc.edu

  11. New collections and customers • We’re looking for new customers! • What kinds of users? • Chronopolis is: • Large in scale • Not designed as an access system • Agnostic to content

  12. New nodes • We’re looking (possibly) for new nodes! • Who would want to join? • Organizations which see the value in geographic replication • Organizations which have some expertise/infrastructure but not the whole enterprise • Why would they want to join? • Gain large preservation environment • New working relationships with other communities (possibly geographically-based)

  13. Extensibility versus Cloning

  14. Advice • Don’t re-invent the wheel: • Use existing tools and processes • Focus on your targeted, unique collections: • Local content • Shared collection foci • Understand the underlying technologies and which would be of benefit (e.g. SRB, BagIt, ACE)

  15. Thanks

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